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A neutron diffraction cell for studying lithium‐insertion processes in electrode materials
Author(s) -
Bergstöm Ö.,
Andersson A. M.,
Edström K.,
Gustafsson T.
Publication year - 1998
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s002188989800538x
Subject(s) - neutron diffraction , electrode , separator (oil production) , electrolyte , materials science , lithium (medication) , electrochemistry , current collector , electrochemical cell , diffraction , chemistry , optics , medicine , physics , thermodynamics , endocrinology
An electrochemical cell has been constructed for in situ neutron diffraction studies of lithium‐insertion/extraction processes in electrode materials for Li‐ion batteries. Its key components are a Pyrex tube, gold plated on its inside, which functions as a current collector, and a central lithium rod, which serves as the negative electrode. The device is demonstrated here for a neutron diffraction study of lithium extraction from LiMn 2 O 4 : a mechanical Celgard © separator soaked in the electrolyte surrounds the lithium electrode. The LiMn 2 O 4 powder, mixed with electrolyte, occupies the space between separator and current collector.